Improvement in attachments for lightning-rods



R. D. DWYER.

I Lightning-Rod Insulator.

No. 13,162. Patented July 3,1855.

UNITED STATES PATENT OFFICE.

ROBERT D. DWYER, OF RIOHMON D, VIRGINIA.

IMPROVEMENT IN ATTACHMENT$ FOR LlGHTNiNG-RODS.

Specification forming part of Letters Patent No. I 3,162, dated July 3,1855.

To all whom it may concern:

Be it known that I, ROBERT D. DWYER, of Richmond, in the county ofHenrico and State of Virginia, have invented a new and usefulImprovement in Lighti'iing-Rod Supporters; and I do hereby declare thatthe following is a full and exact description thereof, reference beinghad to the accompanying drawings, making a part of this specification.

The nature of my invention consists in constructing a lightning-rodholder of only two pieces, of such a form that the rod itself willcombine the said pieces with each other at the same time that the saidrod by so doing is securely held and sustained by the said pieces whenone of them is secured to some portion of a building or is otherwisesuitably sustained.

In the accompanyings drawings, Figure] is an elevation of my improvedrod-supporter; and Figs. 2 and 3 are sections ofthe same, representingthe respective parts thereof as being combined with each other by apiece of a rod.

The portion A of my improved supporter may be made of glass or othersuitable material. The base or the said portion A may be given such ashape as to make it most convenient to secure it to a wall, roof, orother sustainer. The head of A has shoulders c 0 projectin g fromopposite sides thereof and a transverse notch, d, is formed in the faceof said head, which descends into the said shoulders and is enoughlarger than the rod which is to pass into said notch to allow itfrceplay therein.

The other portion of my improved lightningrod holder is composed of thesides 6 c and the connecting-bar f. The said sides echave square holes 9g placed opposite each other, and at their lower extremitiesinwardly-projecting shoulders i i are formed, which shoulders are such adistance from each other that they can be passed freely under theshoulders c 0(which project from the sides of the head of A) into theposition shown in Fig. 3, in which position the holes 9 g in the saidsides 0 0 will be opposite the notch or groove (Z in the face of thehead of A, which will allow the rod is to be passed through the saidholes 9 g and the notch 61, and when placed in said position therespective parts of the rod-holder will be securely fastened to eachother and the said rod be securely fastened to them.

The size of the respective parts of my improved lightning-rod holder areso proportioned to each other and to the size of the rod which they areto be combined with that the high temperature imparted to the rod by theelectric fluid and the consequent expansion of the rod will not produceany injury.

What I claim as my invention, and desire to secure by Letters Patent,is-

Gonstructin g a lightning-rod holder of but two parts, of such a formthat the lightning rod will connect them to each other at the same timethat it combines itself securely with them, substantially as representedby the ac companyin g drawings and herein set forth.

R. D. DWYER.

\Vi tnesses:

JAMES EVANS, I. A. AUGHTNBAUGH.

